Sun exposure and associated risks: Insight from an international survey with a focus on the population with past medical history of skin cancers.

Abstract

e21575 Background: This survey investigates knowledge and behaviors regarding sun exposure among population who have been treated for skin cancer (melanoma/non melanoma) or pre-cancerous lesions in 17 countries. Methods: The survey (N = 17,001) was conducted online in 17 countries (5 continents) from 28 September-18 October 2021. Automated selection from the Ipsos online Panel ensured samples of 1,000 individuals in each country fit the quotas method based on gender, age, employment status, and country regions. Data covered demographics, phototype, exposure habits and practices, knowledge and understanding of risks. The current focus in this abstract was defined as individuals with a history of melanoma/non melanoma skin cancer, pre-cancerous lesions. Results: This sub population represents 8% of the general population (n = 1372), it comprised 54% men, average age was 49.9 years (SD:17.6) and 58% were of phototype 1-2. 90% were aware of sun-related skin-health issues (vs 88% in the general population). 79% did know that sun protection is useful when the weather is overcast, a better knowledge compared to the general population (61%). However, 34% indicated it was safe to expose themselves without protection when already tanned, a larger misconception compared to the general population (23%). 54% did not understand the difference between UVA and UVB vs 70% in the general population. Only 28% systematically/often use all protections measures during exposure; still a higher practice compared to the general population (12%). However, 42% said they protected from the sun all year round, a better habit compared to the general population (23%). During sun exposure, among the 91% who declared using sunscreen, 74% applied sunscreen only once or twice a day, a similar practice among general population (74%). And when already tanned 38% decreased frequency of application and/or used lower protection (44% among general population). 82% regretted not having previously used better protection, a much stronger regret compared to the general population (57%). Conclusions: Although individuals who have been treated for skin cancer or pre-cancerous lesions had better knowledge and behavioral attitudes compared to the general population, this survey shows that even a population at high risk of melanoma and having a regular medical follow-up does not sufficiently perceive the importance of photoprotection in a prevention objective. This leads to discuss the implementation of new information tools with more impact.